pag may vacuum leak, dapat di maayos ang idling or erratic na siya agad. based don sa description mo, pag accelaration lang nag appear yung problem na parang nag hesitate yung engine. hesitate nga ba or mali lang understanding ko?

pag yung idling mismo ang problem, marami posible causes, yung vacuum leak isa na yon, pwede din sa valve yung leak. i suggest ipa thorough test mo muna yung ride mo before replacing parts one after the other... compression and leakdown muna para maverify kung me problem sa loob at hindi basta leak or simple idling problem lang... regards..